Dockerfile

FROM r-base:3.5.2

RUN apt-mark hold r-base-core
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        libcurl4-gnutls-dev \
        libxml2-dev \
        libmariadbclient-dev \
        libssl-dev && \
    apt-get clean && rm -rf /var/lib/apt/lists/*

ENV API_ROOT /opt/r-rest-api

ARG GITHUB_PAT
RUN if [ -z "${GITHUB_PAT}" ]; then >&2 echo "ERROR: GitHub private access token is missing. Please run with '--build-arg GITHUB_PAT=YOUR_GITHUB_TOKEN'."; exit 1; fi

# App dependencies
RUN R -e "withCallingHandlers({ install.packages('devtools'); devtools::install_github('rstudio/packrat') }, warning = function(w) stop(w))"
COPY ./packrat $API_ROOT/packrat
WORKDIR $API_ROOT
RUN R -e "withCallingHandlers({ packrat::restore() }, warning = function(w) stop(w))"
RUN R -e "withCallingHandlers({ packrat::init() }, warning = function(w) stop(w))"

COPY ./R $API_ROOT/R

EXPOSE 8000

CMD ["Rscript", "/opt/r-rest-api/R/plumb.R"]